Michael and DMCVegas said it well, at least as far as I'm concerned, from the perspective of your goal, auto restoration. I'm going to approach it more generically.
Form a plan to get you from where you are to where you want to be. Make your plan specific. That will involve research on various things. These are things others in the thread have mentioned, but I'm talking about you really looking into it. Find out about schools, education, costs, internships or apprenticeships, entry level jobs, specific advancement paths, specific local places you could work. Document these; which can be as simple as writing them down or as complex as a binder of brochures for the places you want to study and work in chronological order. Talk to companies that you might want to work at and find out what will give you a leg up to get in the door. Again, form a plan, follow it as well as you can, and as life causes deviations, do a bit more research to get you back on plan or at least to allow you to modify your plan so it still suits you.
If you have a goal you can make it happen but it won't likely be on a wing and a prayer or by the seat of your pants. It will be with good planning.
Good luck!